Thank you for your brevity you don't have to say more things to show who you are. Else if you don't understand what we are talking about, you shouldn't be rude and insulting. May be you are quite young please take time to read Nonaka and Takeuchi and moreover Takanashi to uderstand the way to go from information to knowledge to wisdom that's quite useful for IS / IT and should bring you a bit of etiquette. *I have a dream* *that one day this nation will rise up and live out the true meaning of its creed : We hold these truths to be self-evident : that all men are created equal.*
Have a nice day. 2011/12/5 Jeff Newmiller <jdnew...@dcn.davis.ca.us> > This is not a homework help list. > --------------------------------------------------------------------------- > Jeff Newmiller The ..... ..... Go Live... > DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live > Go... > Live: OO#.. Dead: OO#.. Playing > Research Engineer (Solar/Batteries O.O#. #.O#. with > /Software/Embedded Controllers) .OO#. .OO#. rocks...1k > --------------------------------------------------------------------------- > Sent from my phone. Please excuse my brevity. > > zz dd <void1...@gmail.com> wrote: > > >Hello > >The solution maybe there but i need to compute it into R if someone can > >help me : > >(Previously store score vector t in score matrix T; store loading > >vector p > >in loading matrix P) that's done by nipals in chemometrics > >After use of nipals function you have T and P matrix > > > >First : "Calculate the residual matrix of X. Stop if the elements of > >Xres > >are very small > >because no further PCA components are reasonable" : > >Xres= X-u.b(T) > > > >u : improved score vector > >b: loading vector > >X : a mean-centered matrix > > > >Second : Replace X with Xres and continue with step 2 (with nipals > >chemometrics...) for calculation of the next PCA > >component. > > > >If someone can help me ? > >Thank's a lot > > > > > >2011/12/1 zz dd <void1...@gmail.com> > > > >> Hello > >> i need some precision about nipals in the chemometrics package in R . > >> > >> When i use nipals in chemometrics i obtain T and P matrix. > >> > >> I really don't understand what to do with these two matrix to obtain > >> the scores for every the component (like in spss fo example) > >> > >> Comp1 Comp2 Comp3 > >> quest1 0,8434 0,54333 0,3466 > >> quest2 0,665 0,7655 0,433 > >> > >> Thank you very much for your help > >> (I know that X=TP+E)... But don't understand else.... > >> > > > > [[alternative HTML version deleted]] > > > >______________________________________________ > >R-help@r-project.org mailing list > >https://stat.ethz.ch/mailman/listinfo/r-help > >PLEASE do read the posting guide > >http://www.R-project.org/posting-guide.html > >and provide commented, minimal, self-contained, reproducible code. > > [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
